Patents by Inventor Jian-Chiuan Wang

Jian-Chiuan Wang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Reflective illumination device
    Patent number: 7530712
    Abstract: A reflective illumination device is disclosed, which is comprised of a light-guiding screen with light reflecting ability and at least a directional light source; wherein the light-guiding screen includes a reflecting surface having a semi-Fresnel lens structure arranged thereon. The semi-Fresnel lens structure, being designed basing on the principle of Fresnel lens, is the equivalent of a parabolic mirror that has spiral cut ridges for focusing light to a focal point, whereas the profile of the ridges can be a planar surface, a curved surface or the combination thereof.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: May 12, 2009
    Assignees: Industrial Technology Research Institute, Toalux Electric Corp.
    Inventors: Jian-Shian Lin, Jian-Chiuan Wang, Chieh-Lung Lai, Hsiu-Chen Hsu, Yi-Ting Sun
  • Reflective illumination device
    Publication number: 20070217193
    Abstract: A reflective illumination device is disclosed, which is comprised of a light-guiding screen with light reflecting ability and at least a directional light source; wherein the light-guiding screen includes a reflecting surface having a semi-Fresnel lens structure arranged thereon. The semi-Fresnel lens structure, being designed basing on the principle of Fresnel lens, is the equivalent of a parabolic mirror that has spiral cut ridges for focusing light to a focal point, whereas the profile of the ridges can be a planar surface, a curved surface or the combination thereof.
    Type: Application
    Filed: July 21, 2006
    Publication date: September 20, 2007
    Inventors: Jian-Shian Lin, Jian-Chiuan Wang, Chieh-Lung Lai, Hsiu-Chen Hsu, Yi-Ting Sun